Integrated full-automatic sludge thickening and dewatering equipment

Abstract

The utility model discloses integrated full-automatic sludge thickening and dewatering equipment which comprises a base, a mixing and thickening area is arranged on the right side of the base, a filter pressing device is arranged on the left side of the base, and the integrated full-automatic sludge thickening and dewatering equipment further comprises a control unit; the mixing and concentrating area is of a four-grid structure and is sequentially provided with a mixing area, a reaction area, a first concentrating area and a second concentrating area along the anticlockwise direction; a feeding pipe and a dosing pipe are arranged on the side wall of the mixing area; clear water areas are arranged on the side walls of the first concentration area and the second concentration area, and clear water pipes are arranged on one sides of the clear water areas; the dehydration effect is good, the efficiency is high, the dehydration equipment does not need to be washed and is not prone to blockage, and full-automatic operation of the equipment can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of sludge concentrating equipment in sewage treatment, in particular to an integrated full-automatic sludge concentrating and dehydrating equipment. Background Art

[0002] In the sludge dewatering process of the water plant, the solid content of the incoming water is relatively low, so a balancing tank needs to be set up to increase the solid content of the sewage, and then dehydrated through the subsequent sludge dewatering machine. The balancing tank occupies a relatively large area, and the civil construction cost of the balancing tank is also relatively high. Therefore, sludge thickening equipment has appeared on the market to replace the balancing tank. For example, Chinese patent CN216513401U discloses a sludge thickener, which is provided with a flocculation tank and a thickening rack. The solid content of the sewage is increased through the mixing reaction of sewage and drugs, and then the dehydration is completed through the rollers and augers in the thickening rack. On the one hand, the goal of increasing the solid content of the sludge can be achieved. On the other hand, the overall footprint of the sludge thickening equipment is small, and the equipment investment cost is relatively low; however, the patent also has certain defects:

[0003] First: After the sewage and drugs are flocculated, they are directly dehydrated in the concentration rack, which results in poor dehydration effect and low dehydration efficiency.

[0004] Second: using equipment such as drums and augers to dehydrate, these equipment need to be cleaned later, wasting water resources. Utility Model Content

[0005] The utility model aims to provide an integrated fully automatic sludge concentrating and dehydrating device.

[0006] The innovation of the utility model lies in that the dehydration effect is good, the efficiency is high, the dehydration equipment does not need to be flushed, is not easy to be blocked, and can realize full automatic operation of the equipment.

[0007] In order to achieve the above utility model purpose, the technical solution of the utility model is:

[0008] The integrated fully automatic sludge thickening and dewatering equipment comprises a base, wherein a mixing and thickening zone is arranged on the right side of the base, a filter press device is arranged on the left side, and a control unit is also included; the mixing and thickening zone is a four-square grid structure, and a mixing zone, a reaction zone, a first thickening zone and a second thickening zone are arranged in sequence in a counterclockwise direction; a feed pipe and a dosing pipe are arranged on the side wall of the mixing zone; a clean water zone is arranged on the side wall of the first thickening zone and the second thickening zone, and a clean water pipe is arranged on one side of the clean water zone; a stirring device is arranged in the mixing zone, the reaction zone, the first thickening zone and the second thickening zone; a thickening device is also arranged in the first thickening zone and the second thickening zone, and the liquid outlet at the bottom of the thickening device is connected to the clean water zone; the side wall of the second thickening zone is connected to the filter press device; the control unit comprises a PLC controller with a PID adjustment function, a liquid level meter arranged in the reaction zone, a feed metering pump and a sludge concentration meter arranged on the feed pipe, a dosing metering pump arranged on the dosing pipe, and a clean water metering pump arranged on the clean water pipe; the liquid level meter, the feed metering pump, the sludge concentration meter, the dosing metering pump, and the clean water metering pump are all connected to the PLC controller.

[0009] Furthermore, the mixing zone and the reaction zone are connected at the bottom, the reaction zone and the first concentrating zone are connected at the top, and the first concentrating zone and the second concentrating zone are connected at the bottom; an S-shaped flow channel is formed among the mixing zone, the reaction zone, the first concentrating zone and the second concentrating zone.

[0010] Furthermore, the filter press device is an elliptical solid-liquid separator; a filtrate box is arranged below the filter press device.

[0011] Furthermore, the concentrating device is a laminated filter.

[0012] The beneficial effects of the utility model are:

[0013] First: The present application sets a first concentrating zone and a second concentrating zone in the mixed concentrating zone, and sets a concentrating device in the first concentrating zone and the second concentrating zone, separates the mixed flocculated mud-water mixture twice, and then enters the filter press device for dehydration, with good dehydration effect and high efficiency.

[0014] Second: This application sets up a PLC controller with PID adjustment function, which controls the feed and dosing through the liquid level meter signal; controls the dosing amount by collecting the feed amount, feed sludge concentration, and water output, so as to realize the fully automatic operation of the equipment and precise dosing.

[0015] Third: The filter press device of the present application uses an elliptical solid-liquid separator. The elliptical solid-liquid separator is based on the principle of self-cleaning filter gaps. It realizes solid-liquid separation and self-cleaning by continuously rotating continuously between the gaps through continuously arranged elliptical disks. Therefore, it basically will not be blocked and does not need to be flushed subsequently, thus saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the utility model.

[0017] Figure 2 This is a cross-sectional view of the utility model.

[0018] Figure 3 This is the principle diagram of the utility model.

[0019] In the figure: 10 is a base, 20 is a mixing and concentration zone, 21 is a mixing zone, 22 is a reaction zone, 23 is a first concentration zone, 24 is a second concentration zone, 25 is a clean water zone, 26 is a feed pipe, 27 is a dosing pipe, 28 is a clean water pipe, 30 is a filter press, 31 is a filtrate box, 40 is a control unit, 41 is a PLC controller, 42 is a liquid level meter, 43 is a feed metering pump, 44 is a sludge concentration meter, 45 is a dosing metering pump, 46 is a clean water metering pump, 50 is a stirring device, and 60 is a concentration device. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings.

[0021] The integrated fully automatic sludge thickening and dehydration equipment comprises a base 10, wherein a mixing and thickening zone 20 is arranged on the right side of the base 10, a filter press device 30 is arranged on the left side, and a control unit 40 is also included; the mixing and thickening zone 20 is a four-square grid structure, and a mixing zone 21, a reaction zone 22, a first thickening zone 23 and a second thickening zone 24 are arranged in sequence in a counterclockwise direction; a feed pipe 26 and a dosing pipe 27 are arranged on the side wall of the mixing zone 21; a clean water zone 25 is arranged on the side wall of the first thickening zone 23 and the second thickening zone 24, and a clean water pipe 28 is arranged on one side of the clean water zone 25; a stirring device 50 is arranged in the mixing zone 21, the reaction zone 22, the first thickening zone 23 and the second thickening zone 24; the first thickening zone 21 is provided with a stirring device 50 ... A concentrating device 60 is also arranged in the contraction zone 23 and the second concentrating zone 24, and the liquid outlet at the bottom of the concentrating device 60 is connected to the clean water zone 25; the side wall of the second concentrating zone 24 is connected to the filter press device 30; the control unit 40 includes a PLC controller 41 with a PID adjustment function, a liquid level meter 42 arranged in the reaction zone 22, a feed metering pump 43 and a sludge concentration meter 44 arranged on the feed pipe 26, a dosing metering pump 45 arranged on the dosing pipe 27, and a clean water metering pump 46 arranged on the clean water pipe 28; the liquid level meter 42, the feed metering pump 43, the sludge concentration meter 44, the dosing metering pump 45, and the clean water metering pump 46 are all connected to the PLC controller 41.

[0022] Furthermore, the stirring device 50 mainly includes a stirring motor, a stirring shaft and stirring blades, etc. This is the prior art and will not be described in detail here.

[0023] Furthermore, the mixing zone 21 is connected to the reaction zone 22 at the bottom, the reaction zone 22 is connected to the first concentration zone 23 at the top, and the first concentration zone 23 is connected to the second concentration zone 24 at the bottom; an S-shaped flow channel is formed among the mixing zone 21, the reaction zone 22, the first concentration zone 23 and the second concentration zone 24.

[0024] Furthermore, the filter press device 30 is an elliptical stacked solid-liquid separator; a filtrate box 31 is arranged below the filter press device 30; the elliptical stacked solid-liquid separator is an existing technology and can be directly purchased from the market.

[0025] Furthermore, the concentrating device 60 is a laminated filter; the laminated filter is a prior art and can be purchased directly from the market.

[0026] How this application works:

[0027] The liquid level in the reaction zone 22 is sent to the PLC controller through the liquid level meter 42. When the liquid level is lower than the low setting value, the PLC controller controls to open the feed metering pump 43 and the dosing metering pump 45 to start feeding; at the same time, the feed metering pump 43 and the dosing metering pump 45 feedback the feed amount and the sludge amount to the PLC controller, the sludge concentration meter 44 feedbacks the sludge concentration of the feed to the PLC controller 41, and the clean water metering pump 46 feedbacks the water output to the PLC controller 41. The PID in the PLC controller 41 calculates and adjusts the dosing metering pump according to the set dosing amount and the actual required dosing amount to achieve precise dosing; when the liquid level is higher than the high setting value, the PLC controller 41 controls to close the feed metering pump 43 and the dosing metering pump 45 to stop feeding, and the overall automatic control is achieved.

[0028] The described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. An integrated fully automatic sludge thickening and dehydration device, comprising a base (10), wherein a mixing and thickening area (20) is arranged on the right side of the base (10), and a filter press device (30) is arranged on the left side, wherein: Also included is a control unit (40); The mixing and concentrating zone (20) is a four-square grid structure, wherein a mixing zone (21), a reaction zone (22), a first concentrating zone (23) and a second concentrating zone (24) are arranged in sequence in a counterclockwise direction; a feed pipe (26) and a drug adding pipe (27) are arranged on the side wall of the mixing zone (21); a clean water zone (25) is arranged on the side wall of the first concentrating zone (23) and the second concentrating zone (24), and a clean water pipe (28) is arranged on one side of the clean water zone (25); a stirring device (50) is arranged in the mixing zone (21), the reaction zone (22), the first concentrating zone (23) and the second concentrating zone (24); a concentrating device (60) is also arranged in the first concentrating zone (23) and the second concentrating zone (24), and the liquid outlet end at the bottom of the concentrating device (60) is connected to the clean water zone (25); the side wall of the second concentrating zone (24) is connected to the filter press device (30); The control unit (40) comprises a PLC controller (41) with a PID adjustment function, a liquid level meter (42) arranged in the reaction zone (22), a feed metering pump (43) and a sludge concentration meter (44) arranged on the feed pipe (26), a dosing metering pump (45) arranged on the dosing pipe (27), and a clean water metering pump (46) arranged on the clean water pipe (28); the liquid level meter (42), the feed metering pump (43), the sludge concentration meter (44), the dosing metering pump (45), and the clean water metering pump (46) are all connected to the PLC controller (41).

2. The integrated fully automatic sludge concentration and dehydration equipment according to claim 1 is characterized by: The mixing zone (21) and the reaction zone (22) are connected at the bottom, the reaction zone (22) and the first concentration zone (23) are connected at the top, and the first concentration zone (23) and the second concentration zone (24) are connected at the bottom; an S-shaped flow channel is formed between the mixing zone (21), the reaction zone (22), the first concentration zone (23) and the second concentration zone (24).

3. The integrated fully automatic sludge concentration and dehydration equipment according to claim 1 is characterized by: The filter press device (30) is an elliptical stacked solid-liquid separator; a filtrate box (31) is provided below the filter press device (30).

4. The integrated fully automatic sludge concentration and dehydration equipment according to claim 1 is characterized by: The concentration device (60) is a laminated filter.

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